Accumulation of chromium and interaction with other elements in Chlorella vulgaris (Cloroficeae) and Daphnia magna (Crustacea, Cladocera).
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Date
2009-03
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Abstract
Assays with Chlorella vulgaris Beijerinck Novakova, 1890 and Daphnia magna Straus, 1820 were performed to determine Cr and
other elements concentration in tissues of both species by instrumental neutron activation analysis (INAA), after being exposed to 150, 280
and 350 .g l-1Cr (VI). Interaction among Cu, Zn, Fe and Cr were also registered. In the control of C. vulgaris, the amount of Cr was < 4μg
g-1; in the treatments with Cr (VI) the values were 47, 82 and 100 folds greater than the control for the lowest, intermediate and highest
concentrations tested respectively. In the control of D. magna, the amount of Cr was <3 μg g-1; in the treatments with Cr (VI) the values
were 14, 13 and 27 folds higher than the control for the lower, intermediate and higher Cr (VI) concentrations respectively, and from 3 to 9
times less than for C. vulgaris These results show that C. vulgaris is very efficient accumulator of Cr (VI) from polluted waters, and in
consequence, it is proposed to be used in phytoremediation procedures.
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Keywords
Chromium, Bioconcentration, Oligoelements, Chlorella vulgaris, Daphnia magna, INAA
Citation
Regaldo L, Gagneten A M, Troiani H. Accumulation of chromium and interaction with other elements in Chlorella vulgaris (Cloroficeae) and Daphnia magna (Crustacea, Cladocera). Journal of Environmental Biology. 2009 Mar; 30(2): 213-216.